ESP32-WROOM-32UE-H4

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-wroom-32ue-h4",
  "title": "ESP32-WROOM-32UE-H4",
  "brief": "Espressif Systems WiFi Modules, ESP32-WROOM-32UE. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "iot-communication modules",
    "esp32-wroom-32ue-h4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-WROOM-32UE-H4",
    "manufacturer": "Espressif Systems",
    "package": "ESP32-WROOM-32UE",
    "pin_count": 39,
    "category": "IoT/Communication Modules",
    "subcategory": "WiFi Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838042363437056",
    "parts": {
      "symbol": "esp32-wroom-32ue-h4.kicad_sym",
      "footprint": "esp32-wroom-32ue-h4.kicad_mod",
      "model_3d": "esp32-wroom-32ue-h4-hero.glb",
      "model_3d_plain": "esp32-wroom-32ue-h4-etched.glb",
      "model_3d_step": "esp32-wroom-32ue-h4-etched.step",
      "model_3d_step_plain": "esp32-wroom-32ue-h4.step",
      "lbr": "esp32-wroom-32ue-h4.lbr"
    },
    "distributor_links": {
      "lcsc": "C3013937",
      "mouser": "356-ESP32WRM32UE32US"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:41:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "356-ESP32WRM32UE32US",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Module supply pin; the datasheet gives 3.0 to 3.6 V with 3.3 V typical and an absolute maximum of 3.6 V."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high enables the chip and low shuts it down; EN must not be left floating."
      },
      {
        "number": "4",
        "name": "SENSOR_VP",
        "type": "input",
        "description": "GPIO36, ADC1_CH0 and RTC_GPIO0 function pin."
      },
      {
        "number": "5",
        "name": "SENSOR_VN",
        "type": "input",
        "description": "GPIO39, ADC1_CH3 and RTC_GPIO3 function pin."
      },
      {
        "number": "6",
        "name": "IO34",
        "type": "input",
        "description": "GPIO34, ADC1_CH6 and RTC_GPIO4 function pin."
      },
      {
        "number": "7",
        "name": "IO35",
        "type": "input",
        "description": "GPIO35, ADC1_CH7 and RTC_GPIO5 function pin."
      },
      {
        "number": "8",
        "name": "IO32",
        "type": "bidirectional",
        "description": "GPIO32 with 32.768 kHz crystal input (XTAL_32K_P), ADC1_CH4, TOUCH9 and RTC_GPIO9 functions."
      },
      {
        "number": "9",
        "name": "IO33",
        "type": "bidirectional",
        "description": "GPIO33 with 32.768 kHz crystal output (XTAL_32K_N), ADC1_CH5, TOUCH8 and RTC_GPIO8 functions."
      },
      {
        "number": "10",
        "name": "IO25",
        "type": "bidirectional",
        "description": "GPIO25 with DAC_1, ADC2_CH8, RTC_GPIO6 and EMAC_RXD0 functions."
      },
      {
        "number": "11",
        "name": "IO26",
        "type": "bidirectional",
        "description": "GPIO26 with DAC_2, ADC2_CH9, RTC_GPIO7 and EMAC_RXD1 functions."
      },
      {
        "number": "12",
        "name": "IO27",
        "type": "bidirectional",
        "description": "GPIO27 with ADC2_CH7, TOUCH7, RTC_GPIO17 and EMAC_RX_DV functions."
      },
      {
        "number": "13",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14 with ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK and EMAC_TXD2 functions."
      },
      {
        "number": "14",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12 with ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2 and EMAC_TXD3 functions; the datasheet says it should be kept low at power-on."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "16",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13 with ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3 and EMAC_RX_ER functions."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected; this pin is not brought out, and the related chip GPIO6 to GPIO11 are used for the integrated SPI flash."
      },
      {
        "number": "23",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15 with ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD and EMAC_RXD3 functions; it is a strapping pin."
      },
      {
        "number": "24",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2 with ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0 and SD_DATA0 functions; it is a strapping pin."
      },
      {
        "number": "25",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 with ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1 and EMAC_TX_CLK functions; it is a strapping pin."
      },
      {
        "number": "26",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 with ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1 and EMAC_TX_ER functions."
      },
      {
        "number": "27",
        "name": "IO16",
        "type": "bidirectional",
        "description": "GPIO16 with HS1_DATA4, U2RXD and EMAC_CLK_OUT functions; on modules with embedded QSPI PSRAM it is used for the PSRAM and cannot be used for other functions."
      },
      {
        "number": "28",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17 with HS1_DATA5, U2TXD and EMAC_CLK_OUT_180 functions."
      },
      {
        "number": "29",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 with VSPICS0, HS1_DATA6 and EMAC_RX_CLK functions; it is a strapping pin."
      },
      {
        "number": "30",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 with VSPICLK and HS1_DATA7 functions."
      },
      {
        "number": "31",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 with VSPIQ, U0CTS and EMAC_TXD0 functions."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC in the pin definition table with no function given."
      },
      {
        "number": "33",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21 with VSPIHD and EMAC_TX_EN functions."
      },
      {
        "number": "34",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "GPIO3 used as the U0RXD receive function, also with CLK_OUT2."
      },
      {
        "number": "35",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "GPIO1 used as the U0TXD transmit function, also with CLK_OUT3 and EMAC_RXD2."
      },
      {
        "number": "36",
        "name": "IO22",
        "type": "bidirectional",
        "description": "GPIO22 with VSPIWP, U0RTS and EMAC_TXD1 functions."
      },
      {
        "number": "37",
        "name": "IO23",
        "type": "bidirectional",
        "description": "GPIO23 with VSPID and HS1_STROBE functions."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed ground pad (EPAD); it may be left unsoldered to the host board, and if soldered, excess solder paste should be avoided."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet covers both ESP32-WROOM-32E and ESP32-WROOM-32UE. The MPN ESP32-WROOM-32UE-H4 is in ta; Table 3 lists 38 pins. The exposed pad is named as pin 39 only in the schematic and the notes (pages; Descriptions were translated from the Chinese datasheet. NC pins 17 to 22 are described using footno"
        ],
        "pages_sent": 35,
        "cost_usd": 0.1627,
        "at": "2026-10-28T17:38:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838042363437056",
        "pages": 48,
        "sha256": "0ac83c833dabfd12",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 39,
        "described": 39,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-wroom-32ue-h4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18,
          19.2,
          3.2
        ],
        "zmin_mm": -0.001,
        "centre_offset_mm": 0.62,
        "footprint_binding": "identity",
        "sha256": "97318b6c531c043e10a4c587d4f7b40cb37cad026e354870f4284b06536733cb",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-wroom-32ue-h4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18,
          19.2,
          3.2
        ],
        "zmin_mm": -0.001,
        "centre_offset_mm": 0.62,
        "footprint_binding": "identity",
        "sha256": "f76ca7f01d87b0b68e7e450389b4da160b1803639e81d702807817e43d7af1e9",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "ESP32-WROOM-32UE",
      "Category": "IoT/Communication Modules",
      "Pins": "39"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0ac83c833dabfd1242f202bb94a15d8439c927f3d32cc4b44ebba6b7fac7973e",
      "rows": [
        {
          "name": "Supply voltage (absolute maximum rating)",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTORE",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Power supply pin voltage (recommended)",
          "symbol": "VDD33",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "External power supply current",
          "symbol": "IVDD",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature, 85 °C version",
          "symbol": "T",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "85 °C version",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature, 105 °C version",
          "symbol": "T",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 105,
          "conditions": "105 °C version",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Low-level input voltage for CHIP_PU shutdown of chip",
          "symbol": "VIL_nRST",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD3P3_CPU power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, pin output strength set to maximum",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD3P3_RTC power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, pin output strength set to maximum",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "High-level source current, VDD_SDIO power domain",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOH >= 2.64 V, pin output strength set to maximum",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Low-level sink current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 28,
          "max": null,
          "conditions": "VDD1 = 3.3 V, VOL = 0.495 V, pin output strength set to maximum",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Pull-down resistor",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Pin capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 26,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
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  "discovery_triggers": [
    "esp32-wroom-32ue-h4"
  ],
  "discovery_pitch": "ESP32-WROOM-32UE-H4 (Espressif Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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